On 12/11/10 1:13 PM, Michael Miles wrote: > Considering that the LVM is a ext4 Virtual partition it seems to me > that it would be easy to convert but there is no such beast out there > Lots of stuff for converting ext3 to ext4 but nothing for what I need. This is pure speculation on my part, but I'm guessing one reason it's hard is that the LVM layer knows nothing about the ext4 layer. The ext4 layer contains lots of metadata (inodes, freelists, etc.) which includes pointers to disk sectors or extents. In a physical partition these point to real disk addresses but in an LVM partition they are virtual (compare real with virtual memory for an analogy). From LVM's viewpoint the entire ext4 fs is just disk sectors with random binary data. The fact that some of this stuff is fs metadata and some isn't means that a conversion tool would need to understand the ext4 metadata to convert it. Of course if it's ext3 or xfs or btrfs etc. then the same applies, with different rules for each one. Worse still, if you want a in-place conversion you have to be able to do this in such a way that it's recoverable even after a hard system crash in the middle of the conversion. And if you don't need it in-place, you already have the solution as said before. Just my 2 cents. poc -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
